fixes microsoft#13869

isidorn · isidorn · commit b978e44244ee · 2016-10-17T11:30:04.000+02:00
diff --git a/src/vs/workbench/parts/debug/electron-browser/debugViewer.ts b/src/vs/workbench/parts/debug/electron-browser/debugViewer.ts
@@ -279,8 +279,10 @@ export class CallStackController extends BaseDebugController {
 	private focusStackFrame(stackFrame: debug.IStackFrame, event: IKeyboardEvent | IMouseEvent, preserveFocus: boolean): void {
 		this.debugService.setFocusedStackFrameAndEvaluate(stackFrame).done(null, errors.onUnexpectedError);
 
-		const sideBySide = (event && (event.ctrlKey || event.metaKey));
-		this.debugService.openOrRevealSource(stackFrame.source, stackFrame.lineNumber, preserveFocus, sideBySide).done(null, errors.onUnexpectedError);
+		if (stackFrame) {
+			const sideBySide = (event && (event.ctrlKey || event.metaKey));
+			this.debugService.openOrRevealSource(stackFrame.source, stackFrame.lineNumber, preserveFocus, sideBySide).done(null, errors.onUnexpectedError);
+		}
 	}
 }
 

Original file line number	Diff line number	Diff line change
`@@ -279,8 +279,10 @@ export class CallStackController extends BaseDebugController {`
`279`	`279`	`private focusStackFrame(stackFrame: debug.IStackFrame, event: IKeyboardEvent \| IMouseEvent, preserveFocus: boolean): void {`
`280`	`280`	`this.debugService.setFocusedStackFrameAndEvaluate(stackFrame).done(null, errors.onUnexpectedError);`
`281`	`281`
`282`		`- const sideBySide = (event && (event.ctrlKey \|\| event.metaKey));`
`283`		`- this.debugService.openOrRevealSource(stackFrame.source, stackFrame.lineNumber, preserveFocus, sideBySide).done(null, errors.onUnexpectedError);`
	`282`	`+ if (stackFrame) {`
	`283`	`+ const sideBySide = (event && (event.ctrlKey \|\| event.metaKey));`
	`284`	`+ this.debugService.openOrRevealSource(stackFrame.source, stackFrame.lineNumber, preserveFocus, sideBySide).done(null, errors.onUnexpectedError);`
	`285`	`+ }`
`284`	`286`	`}`
`285`	`287`	`}`
`286`	`288`